Home / 727,039.25-1,002,660.96-455,131.90

Finding the Fourth Proportional to 727,039.25, 1,002,660.96 and 455,131.90

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Solution

The fourth proportional to 727,039.25, 1,002,660.96 and 455,131.90 is: 627,673.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,039.25 : 1,002,660.96 = 455,131.90 : x
  2. Step 2: Convert to fraction form
    727,039.25/1,002,660.96 = 455,131.90/x
  3. Step 3: Cross multiply
    727,039.25x = 1,002,660.96 × 455,131.90
  4. Step 4: Simplify right side
    727,039.25x = 456,342,987,780.62
  5. Step 5: Solve for x
    x = 456,342,987,780.62/727,039.25
  6. Step 6: Final answer
    x = 627,673.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.